8051 experiments1
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The document describes experiments using an 8051 microcontroller to perform various arithmetic operations and generate waveforms. It discusses programs to add, subtract, multiply and divide data using the 8051. It also explains how to generate square, sawtooth and triangular waves using a digital to analog converter (DAC) interfaced with the 8051. Finally, it provides a program to interface a stepper motor with the 8051 and run it in clockwise and counter-clockwise directions.
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5. Sorting and searching arrays. Toggling an output pin with a delay.
Maicrocontroller lab basic experiments
This document contains code snippets and explanations for basic experiments using 8051 assembly language code.
1) It includes code to move and exchange data within RAM and between RAM and external memory.
2) Code is provided to perform arithmetic operations like addition, subtraction, multiplication, and division on 8-bit numbers.
3) Logical operations like AND, OR, XOR, and bit shifts are demonstrated.
4) Code conversions between BCD, binary, and ASCII representations are shown.
5) Additional code snippets sort arrays, search for a number, count bits, and toggle an output pin with a delay.
Maicrocontroller lab basic experiments
This document contains code snippets and explanations for basic experiments using 8051 assembly language code.
1) It includes code to move and exchange data within RAM and between RAM and external memory. Arithmetic operations like addition, multiplication, and logical operations are also demonstrated.
2) Code conversions between BCD, binary, and ASCII are shown. Programs for sorting arrays and searching for a value in an array are provided.
3) A program is given to toggle an output pin with a delay, demonstrating bit manipulation and subroutines. Sample runs confirm the expected behavior for each code example.
Micro Controller lab basic experiments (1)
This document contains code snippets and explanations for basic experiments using 8051 assembly language code.
1) It includes code to move and exchange data within RAM and between RAM and external memory.
2) Code is provided to perform arithmetic operations like addition, subtraction, multiplication, and division on 8-bit numbers.
3) Logical operations like AND, OR, XOR, and bit shifts are demonstrated.
4) Conversions between binary, BCD, and ASCII representations are shown.
5) Additional code snippets sort arrays, search for a number, count bits, and toggle an output pin with a delay.
Microcontroller 8051- soft.ppt
The document discusses numerical bases used in programming such as hexadecimal, binary, and BCD. It provides examples of converting between decimal, binary, hexadecimal and BCD representations of numbers. It also summarizes common registers, memory mapping, addressing modes, and basic instructions of the 8051 microcontroller.
Micro p test
1. The document discusses interrupts in the 8085 microprocessor. It lists the 5 hardware interrupts - INTR, RST 5.5, RST 6.5, RST 7.5, and TRAP - and their priorities, with TRAP being the highest. It distinguishes between vectored interrupts, which provide the interrupt address, and non-vectored interrupts, where the address must be supplied.
2. An example assembly language program is provided to create a time delay of 1.8 seconds using nested loops and decrement instructions. Interrupt basics are reviewed, such as the differences between maskable and non-maskable interrupts.
CoffeeScript for the Rubyist
The document discusses the history and purpose of CoffeeScript, describing it as a "little language that compiles into JavaScript" and was created to make JavaScript easier to read, write, and maintain while still integrating with existing JavaScript code. It provides examples of CoffeeScript syntax which removes semicolons and curly braces while adding whitespace sensitivity compared to JavaScript.
CoffeeScript for the Rubyist
The document discusses CoffeeScript, which is a little language that compiles into JavaScript and makes coding in JavaScript easier and more pleasant by providing Ruby/Python-inspired syntax and features. It provides examples of CoffeeScript code and compares it to equivalent JavaScript code, demonstrating how CoffeeScript cleans up JavaScript syntax and makes code more readable and maintainable. The history of CoffeeScript is also briefly covered, explaining how it came about from a desire to create a scripting language for web browsers that was inspired by Lisp but ended up needing to compile to JavaScript.
PPI Modes.pptx
This document provides information about programming an 8086 microprocessor to communicate with a Programmable Peripheral Interface (PPI) chip. It includes example control word configurations for different PPI modes and I/O port addresses. It also provides example code snippets for reading from and writing to PPI ports. Finally, it lists two programming challenges - to design an address decoder for a PPI system and write programs to transfer data between PPI ports in different modes.
Embedded Systems Training & Live Projects @Technogroovy Systems India Pvt Ltd
This document discusses numerical bases used in programming such as hexadecimal, binary, and BCD. It provides examples of converting between decimal, binary, hexadecimal, and BCD representations of numbers. It also discusses registers, memory mapping, addressing modes, instructions, and other concepts related to the 8051 microcontroller.
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Addressing mode and instruction set using 8051
Here are the key steps for programming timer 0 in mode 2:
1. Select mode 2 for timer 0 by writing to the TMOD register:
MOV TMOD,#02h
2. Write the initial count value to TH0:
MOV TH0,#0FCh
3. Clear the timer flag TF0:
CLR TF0
4. Start the timer by setting TR0:
SETB TR0
5. The timer will now count down from the value in TH0 (0FCh) to 0 in TL0.
6. When TL0 underflows to 0, TF0 will be set.
7. Check TF0 to detect overflow:
Automatic light project
This project automatically controls room lights and counts visitors using a microcontroller. When a person enters or exits, the counter increments or decrements accordingly. The light turns on when someone enters and off when the room is empty. The total visitor count is displayed on seven-segment displays. An infrared sensor detects movement and the microcontroller monitors it to control the lights and counting.
Microprocessor Week 8: Subroutine
Here is a program to do that:
ORG 20H
MOV R0,#20H ; starting address
MOV A,#F0H ; value to fill
L1: MOV @R0,A
INC R0
CJNE R0,#30H,L1
MOV R0,#30H ; starting address
MOV A,#E0H ; left shifted value
L2: MOV @R0,A
INC R0
CJNE R0,#40H,L2
END
The program:
A. Fills memory addresses 20h to 2Fh with value F0h
B. Fills memory addresses 30h to 3
Alp 8051
The document provides an overview of the 8051 microcontroller architecture including its programmer's model, addressing modes, instruction classes, and example programs. It describes the 8051's 8-bit data bus, 16-bit address bus, special function registers, 4K bytes of internal RAM, 64K bytes of external program memory space, and 64K bytes of external data memory space. It also outlines the 8051's instruction sets for data movement, arithmetic, logical operations, shifting, bit manipulation, and program control.
Applications of microcontroller(8051)
The document discusses various applications of microcontrollers including the 8051 microcontroller. It describes how microcontrollers can be used in mobile phones, automobiles, consumer electronics and more. It also provides examples of using microcontrollers to interface with displays like 7-segment LEDs and LCDs. Circuit diagrams and code are given to illustrate controlling stepper motors and reading input pins to control stepper motor direction.
Programs using Microcontrollers.ppt
This document contains 14 assembly language programs for the 8051 microcontroller. The programs perform tasks like transferring data between memory locations, adding numbers from RAM, exchanging bytes in memory, finding if a byte exists in a sequence, calculating averages, counting bits, multiplying and dividing 8-bit numbers, and finding odd/even and positive/negative numbers.
Https _doc-0o-c4-apps-viewer.googleusercontent
The document describes various data transfer and branching instructions in 8051 assembly language. It explains instructions like MOV, MOVC, MOVX that transfer data between registers and memory. It also covers conditional and unconditional jump instructions like JZ, JNZ, DJNZ, JNC that control program flow. Examples are given to illustrate the use of these instructions for operations like loading values, complementing data, and creating time delays.
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Embedded Systems Training & Live Projects @Technogroovy Systems India Pvt Ltd
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Lecture11
The document discusses point-to-point communication in MPI, including sending and receiving processes, unidirectional and bidirectional communication, and collective communication operations like scatter and gather. It provides code examples in Fortran and C of using MPI_Scatter to distribute data across processes and MPI_Gather to collect results back at the root process.
Lecture10
This document discusses MPI (Message Passing Interface) concepts including:
1. The six basic MPI calls for initialization, getting rank/size, sending/receiving data, and finalization.
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Lecture9
This document provides an overview of Message Passing Interface (MPI) including advantages of the message passing programming model, background on MPI, key concepts, and examples of basic MPI communications. The 6 basic MPI calls in C and Fortran are described which include MPI_Init, MPI_Comm_rank, MPI_Comm_Size, MPI_Send, MPI_Recv, and MPI_Finalize. A simple example program demonstrates a basic send and receive of an integer between two processors.
Lecture7
The document discusses loop level parallelism in OpenMP. It describes how to parallelize loops using directives like #pragma omp parallel for in C/C++ and !$omp parallel do in Fortran. It discusses restrictions on loop parallelism and issues like shared/private variables, reductions, scheduling and nested loops. It also introduces coarse-grained parallelism using parallel regions in OpenMP.
Lecture8
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Lecture6
- OpenMP provides compiler directives and library calls to incrementally parallelize applications for shared memory multiprocessor systems. It works by allowing the master thread to spawn worker threads to perform work concurrently using directives like parallel and parallel do.
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- Synchronization is needed to coordinate thread access and ensure correct results. The barrier directive synchronizes threads at the end of parallel regions.
Lecture5
Programming parallel computers can be done with shared memory or distributed memory models. Shared memory is easier since it has a single address space, while distributed memory requires managing multiple address spaces and remote data access. The dominant programming model is Single Program Multiple Data (SPMD) where the same code runs on all processors. OpenMP is used for shared memory and MPI is used for distributed memory. They involve directives/calls for parallelization and inter-processor communication. Multi-tiered systems can be programmed with MPI and OpenMP together or MPI alone.
Lecture4
Uniform memory access (UMA) systems provide uniform memory access times for processors, while non-uniform memory access (NUMA) systems provide faster access to local versus remote memory. Cache coherence must be maintained across networks in NUMA systems as well as within nodes to ensure processors see updated values. Distributed shared memory (cc-NUMA) systems consist of processors with local memory and a global address space, requiring cache coherence to be enforced across the network.
Lecture3
This document discusses various types of interconnect networks that can be used to connect processors and memory in parallel computers. It describes dynamic interconnects like crossbar switches and bus-based networks that are commonly used for shared memory systems. It also describes static interconnects like completely connected, star connected, linear arrays, rings, meshes, torus and hypercubes typically used for message passing systems. It provides details on different properties of these networks like diameter, connectivity, bisection width etc. It also discusses performance modeling and sources of overhead in parallel systems.
Lecture2
1. The basic components of a parallel computer are processors, memory, and an interconnect network that connects the processors and memory.
2. Key processor terms include RISC, pipelining, and superscalar, which refer to instruction processing techniques. The network interconnect is characterized by latency, bandwidth, and topology.
3. Memory terms include cache, which sits between the CPU and main memory, as well as instruction cache, data cache, secondary cache, and translation lookaside buffer. Caches provide faster access to frequently used data and instructions.
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This document discusses parallel computing. It provides examples of tasks that can be solved faster through parallel processing by dividing the work among multiple processors. The key benefits of parallel computing are speeding up tasks and solving problems too large for a single processor. It also discusses limits of parallel computing such as load balancing and Amdahl's law, which places theoretical limits on speedup from additional processors.
Lecture 1
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive functioning. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Good example on ga
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Lect3
The document summarizes a lecture on wireless networks. It outlines the key requirements for wireless LANs including throughput, number of supported nodes, quality of service, energy saving, and roaming support. It also describes various wireless LAN technologies like infrared, UHF narrowband, and spread spectrum. Finally, it provides an overview of the IEEE 802.11 wireless LAN standard including the physical layers, bands, and data rates supported by different versions of the standard.
Lect4
Here are the solutions to the examples:
Example 21.5:
Let f(x) = x^3 - 3x^2 + 2x. Then,
f'(x) = 3x^2 - 6x + 2.
Example 21.6:
Let f(x) = 5x - 3. Then,
f'(x) = 5.
Example 21.7:
Let f(x) = sqrt(x). Then,
f'(x) = 1/(2sqrt(x)).
Lect4
Here are the solutions to the examples:
Example 21.5:
Let f(x) = x^3 - 3x^2 + 2x. Then,
f'(x) = 3x^2 - 6x + 2.
Example 21.6:
Let f(x) = 5x - 3. Then,
f'(x) = 5.
Example 21.7:
Let f(x) = sqrt(x). Then,
f'(x) = 1/(2sqrt(x)).
Above theclouds
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8051 experiments1
- 1. 8051- Microcontroller Experiments Exp No: 17 AIM: To perform 8 bit arithmetic operations using 8051 microcontroller. A) Addition B) Subtraction C) Multiplication D) Division ADDITION MOV R0,#00 MOV A,#DATA1 ADD A, #DATA2 JNC LABEL INC R0 LABEL: MOV DPTR,#4150 MOVX @DPTR,A INC DPTR MOV A,R0 MOVX @DPTR,A HERE: SJMP HERE SUBTRACTION CLR C MOV B,#00 MOV A,#DATA1 SUBB A,#DATA2 JNC LABEL CPL A INC A INC B LABEL: MOV DPTR,#4150 MOVX @DPTR, A INC DPTR MOV A,B MOVX @DPTR,A HERE: SJMP HERE
- 2. MULTIPLICATION MOV A, #DATA1 MOV B, A MOV A, #DATA2 MUL AB MOV DPTR, #4150 MOVX @DPTR, A INC DPTR MOV A, B MOVX @DPTR, A LOOP: SJMP LOOP DIVISION MOV A, #DATA1 MOV B,A MOV A, #DATA2 DIV AB MOV DPTR, #4150 MOVX @DPTR, A INC DPTR MOV A, B MOV @DPTR, A LOOP SJMP LOOP
- 3. EXP NO: 18) INTERFACING OF DAC (Digital to Analog Converter)FOR GENERATIG WAVEFORMS 18 A) SQUARE WAVE GENERATION AIM. To generate square wave using DAC. PROGRAM START MOV DPTR,#FFC8 MOV A,#00 MOVX @DPTR,A LCALL DELAY MOV A,#FF MOVX @DPTR,A LCALL DELAY LJMP START DELAY MOV R1, #05 LOOP MOV R2, #FF HERE DJNZ R2, HERE DJNZ R1, LOOP RET . 18 B) Generation of sawtooth wave Aim To create a sawtooth wave using DAC Program MOV DPTR, #FFC8 MOV A,#00 LOOP: MOVX @DPTR,A INC A SJMP LOOP
- 4. 18 C) Generation of triangular wave AIM To generate triangular waveform using DAC. Program MOV DPTR, #FFC8 START MOV A, #00 LOOP1 MOV @DPTR,A INC A JNZ LOOP1 MOV A, #FF LOOP2 MOVX @DPTR,A DEC A JNZ LOOP2 LJMP START
- 5. Exp No: 19 ) Stepper Motor Interfacing Aim To interface the stepper motor with 8051 and run it in clockwise and anticlockwise directions. Program Start: MOV DPTR,#4500 MOV R0,#04H JO : MOVX A,@DPTR PUSH DPH PUSH DPL MOV DPTR,#FFC0 MOV R2,#04 MOV R1,#0F DLY1: MOV R3,#0F DLY: DJNZ R3,DLY DJNZ R1,DLY1 DJNZ R2,DLY1 MOVX @DPTR,A POP DPL POP DPH INC DPTR DJNZ R0,JO SJMP START Address For Clockwise For Rotation Anticlockwise Rotation 4500 08 08 4501 01 02 4502 04 04 4503 02 01
- 6. Clock wise Anticlock wise Step A1 A2 B1 B2 Step A1 A2 B1 B2 1 1 0 0 0 8 1 1 0 0 0 8 2 0 0 0 1 1 2 0 0 1 0 2 3 0 1 0 0 4 3 0 1 0 0 4 4 0 0 1 0 2 4 0 0 0 1 1